1 /*
   2  * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.io.BufferedWriter;
  25 import java.io.File;
  26 import java.io.FileWriter;
  27 import java.io.PrintWriter;
  28 
  29 public class Hello {
  30 
  31     private static final String MSG = "jpackage test application";
  32     private static final int EXPECTED_NUM_OF_PARAMS = 3; // Starts at 1
  33 
  34     public static void main(String[] args) {
  35         printToStdout(args);
  36         printToFile(args);
  37     }
  38 
  39     private static void printToStdout(String[] args) {
  40         System.out.println(MSG);
  41 
  42         System.out.println("args.length: " + args.length);
  43 
  44         for (String arg : args) {
  45             System.out.println(arg);
  46         }
  47 
  48         for (int index = 1; index <= EXPECTED_NUM_OF_PARAMS; index++) {
  49             String value = System.getProperty("param" + index);
  50             if (value != null) {
  51                 System.out.println("-Dparam" + index + "=" + value);
  52             }
  53         }
  54     }
  55 
  56     private static void printToFile(String[] args) {
  57         String outputFile = "appOutput.txt";
  58         File file = new File(outputFile);
  59 
  60         try (PrintWriter out
  61                 = new PrintWriter(new BufferedWriter(new FileWriter(file)))) {
  62             out.println(MSG);
  63 
  64             out.println("args.length: " + args.length);
  65 
  66             for (String arg : args) {
  67                 out.println(arg);
  68             }
  69 
  70             for (int index = 1; index <= EXPECTED_NUM_OF_PARAMS; index++) {
  71                 String value = System.getProperty("param" + index);
  72                 if (value != null) {
  73                     out.println("-Dparam" + index + "=" + value);
  74                 }
  75             }
  76         } catch (Exception ex) {
  77             System.err.println(ex.getMessage());
  78         }
  79     }
  80 }